Connective Tissue IV Flashcards
1
Q
What are the 4 main functions of muscle tissue?
A
- movement
- posture
- joint stability
- heat production
2
Q
What is muscle tissue important for?
A
- movement
- speaking
- chewing
3
Q
What are the 3 types of muscular tissue?
A
- skeletal
- smooth
- cardiac
4
Q
Describe the structure of skeletal muscle?
A
- consists of parallel, non-branching, multi-nucleated muscle fibres united together in bundles
- surrounded by a sheath
5
Q
What are 3 main functions of skeletal muscle
A
- voluntary movement
- locomotion
- expression
6
Q
How does skeletal muscle tissue work?
A
Mainly in a voluntary manner, its activity can be consciously controlled
7
Q
What is an example of skeletal muscles working subconsciously?
A
- the diaphragm alternately contracts and relaxes without constant control
8
Q
Describe smooth muscle tissue
A
- lacks striations of skeletal and cardiac tissue
- spindle shaped cells with one central nucleus
- usually involuntary
9
Q
What are functions of smooth muscle?
A
- moves food down oesophagus
- urine down bladder
- controls diameter of respiratory pathways
10
Q
Where is smooth muscle tissue located
A
- walls of arteries and veins
- walls of hollow organs
- muscles that adjust pupil diameter
11
Q
Describe cardiac muscle?
A
- found only in walls of the heart
- striated like skeletal muscle
- involuntary
12
Q
What is the main function of cardiac muscle
A
Involuntarily propels blood to and from the heart
